diff --git a/.test-conda-env-py3-requirements.txt b/.test-conda-env-py3-requirements.txt
index 01f08662149acd51177b1f4c3a96d873555a5a9e..b0dc4973995ac20d10d7e46d7ee4bcd09d5cb1e0 100644
--- a/.test-conda-env-py3-requirements.txt
+++ b/.test-conda-env-py3-requirements.txt
@@ -1,3 +1,3 @@
-git+https://github.com/inducer/boxtree
+git+https://gitlab.tiker.net/inducer/boxtree@compress-list-3-new
 git+https://github.com/inducer/pymbolic
 git+https://github.com/inducer/loopy